Microbial responses towards biochar application in potentially toxic element(PTE)contaminated soil:a critical review on effects and potential mechanisms  

作　　者：Xiao Yang Miao You Siyan Liu Binoy Sarkar Zhaoshu Liu Xiulan Yan 

机构地区：[1]Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China [2]College of Resources and Environment,University of Chinese Academy of Sciences,Beijing 100190,China [3]Future Industries Institute,University of South Australia,Mawson Lakes,SA 5095,Australia

出　　处：《Biochar》2023年第1期993-1013,共21页生物炭（英文）

基　　金：National Natural Science Foundation of China(Grant No.U21A2023,42207456);Scientific Research Foundation of the Institute of Geographic Sciences and Natural Resources Research,CAS(No.E0V00107YZ).

摘　　要：Soil harbors a huge diversity of microorganisms and serves as the ecological and social foundation of human civilization.Hence,soil health management is of utmost and consistent importance,aligning with the United Nations Sustainable Development Goals.One of the most hazardous contaminants in soil matrix is potentially toxic elements(PTEs),which can cause stress in soil indigenous microorganisms and severely jeopardize soil health.Biochar technology has emerged as a promising means to alleviate PTE toxicity and benefit soil health management.Current literature has broadly integrated knowledge about the potential consequences of biochar-amended soil but has focused more on the physical and chemical responses of the soil system than microbiological attributes.In consideration of the indispensable roles of soil microbials,this paper first introduces PTE-induced stresses on soil microbials and then proposes the mechanisms of biochar’s effects on soil microbials.Finally,microbial responses including variations in abundance,interspecific relationships,community composition and biological functions in biochar-amended soil are critically reviewed.This review thus aims to provide a comprehensive scientific view on the effect of biochar on soil microbiological health and its management.

关 键 词：Soil microbiological health BIOGEOCHEMISTRY Potential toxic elements BIOCHAR Environmental impact assessment 

分 类 号：S154.3[农业科学—土壤学]